Abstract:The mechanism of removal of Cu from carbon saturated iron with FeS-based agents is investigated at 1350°C. The Na 2 S in the FeS-based agents plays an important role, including fixing FeS, limiting its dissolution into molten iron, and absorbing fixed products during decopperization treatment. The optimal copper removal rate in 15 min is 95.1% when the Na 2 S-FeS slag with X FeS /X Na2S = 6/4 is used, and the sulphur content can be controlled at about 0.032 wt-% when the Na 2 S-FeS slag with X FeS /X Na2S = 2/… Show more
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